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Infineon Technologies CY8C4245AXI-M445
- Part No.:
- CY8C4245AXI-M445
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
CY8C4245AXI-M445.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,775
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Product details
Overview
CY8C4245AXI-M445 from Infineon is a PSoC™ 4200M programmable system-on-chip integrating an Arm® Cortex®-M0 CPU (48 MHz), 128 kB flash, 16 kB SRAM, and reconfigurable analog/digital blocks. It supports capacitive sensing (CSD), segment LCD drive, dual CAN interfaces, and operates from 1.71–5.5 V across –40°C to +105°C for industrial motor control and HMI applications.
For engineers reviewing the CY8C4245AXI-M445 datasheet, CY8C4245AXI-M445 pinout, CY8C4245AXI-M445 application, or CY8C4245AXI-M445 equivalent, key selection criteria include Deep Sleep current (20 nA), SAR ADC performance (12-bit, 1-Msps), TCPWM flexibility (eight 16-bit blocks), and CAPSENSE™ water tolerance with SmartSense auto-tuning.
Technical Context
The device implements a tightly coupled architecture where the Cortex®-M0 core executes firmware while programmable analog blocks (four opamps, two comparators, 12-bit SAR ADC) and digital blocks (UDBs, TCPWM, SCBs) operate independently under hardware routing control. All analog peripherals retain functionality in Deep Sleep mode with sub-μA quiescent current.
Its four Serial Communication Blocks (SCBs) support runtime reconfiguration between I²C, SPI, and UART protocols; two dedicated CAN 2.0B controllers enable robust industrial networking. The eight TCPWM blocks support center-aligned PWM, kill-signal triggering via comparator inputs, and pseudo-random modulation for EMI reduction.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0 @ 48 MHz with single-cycle multiply - enables real-time control loop execution within <21 ns per instruction. |
| Memory | 128 kB flash (with Read Accelerator) + 16 kB SRAM - supports complex firmware with fast ISR response and data buffering. |
| ADC | 12-bit SAR ADC @ 1-Msps - delivers high-resolution sensor acquisition with <1 μs conversion time for closed-loop feedback. |
| Capacitive Sensing | Infineon CSD engine with >5:1 SNR and water tolerance - enables reliable touch buttons/sliders in humid or wet environments without shielding. |
| Low-Power Modes | 20-nA Stop Mode with GPIO wakeup - extends battery life in always-on HMI nodes with instant wake capability. |
| CAN Interfaces | Two independent CAN 2.0B controllers - allows dual-bus communication (e.g., internal diagnostics + external fieldbus) without software arbitration. |
| PWM Timing | Eight 16-bit TCPWM blocks with comparator-triggered kill signals - supports three-phase motor gate drive with hardware-fault shutdown. |
Pinout & Package
This device is housed in a 44-pin TQFP package with 55 programmable GPIOs supporting CAPSENSE™, LCD segment/common drive, analog input/output, and digital logic. Pin functions are fully configurable via PSoC™ Creator; all GPIOs support programmable drive strength, slew rate, and pull-up/down.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0[0]–P0[7] | General-purpose I/O / CAPSENSE™ / Analog Input | Configurable as CSD sensor electrode, ADC input, or opamp output; supports Deep Sleep operation. |
| P1[0]–P1[7] | GPIO / LCD Segment/COM / SCB Interface | Drives up to 4-bit memory per pin in Deep Sleep LCD mode; supports I²C/SPI/UART via SCB mapping. |
| P2[0]–P2[7] | GPIO / CAN TX/RX / TCPWM Output | Dedicated CAN physical layer interface; also routes PWM outputs with dead-time insertion and kill-signal input. |
| VDD / VSS | Power Supply / Ground | Supports 1.71–5.5 V operation; separate analog/digital ground pins ensure noise isolation for ADC and opamps. |
| XRES | External Reset Input | Active-low asynchronous reset with internal pull-up; compatible with open-drain reset supervisors. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Analog Subsystem | Four opamps with ADC input buffering, comparator mode, and high-current drive - eliminates external signal conditioning for sensor front-ends. |
| Universal Digital Blocks (UDBs) | Four UDBs, each with 8 macrocells and 8-bit datapath - enables custom state machines or glue logic without consuming CPU cycles. |
| SmartSense Auto-Tuning | Hardware-accelerated CSD calibration - reduces firmware development time and ensures consistent touch performance across temperature and voltage variation. |
| LCD Direct Drive | Segment/COM drive on all GPIOs with 4-bit memory retention in Deep Sleep - enables ultra-low-power segmented displays without external controllers. |
| Reconfigurable SCBs | Four SCBs supporting I²C/SPI/UART in any combination - simplifies board layout by eliminating fixed-peripheral pin constraints. |
Applications
| Industrial Motor Control | Automotive Body Electronics |
|---|---|
Use Scenario: Three-phase BLDC motor controller with integrated current sensing, position feedback, and fault protection. IC Role / Device Role / Timing Role: MCU subsystem executes FOC algorithm; TCPWM generates synchronized gate drive; comparators trigger hardware kill signals on overcurrent. Use Value: Eliminates discrete comparator and PWM generator ICs; reduces BOM count and PCB area while improving fault response time to <100 ns. |
Use Scenario: Touch-enabled door handle module with proximity detection, water tolerance, and LIN/CAN gateway functionality. IC Role / Device Role / Timing Role: CAPSENSE™ subsystem detects hand presence; CAN block communicates status to body control module; Deep Sleep mode maintains <25 nA standby current. Use Value: Single-chip solution replaces touch controller + microcontroller + CAN transceiver; meets ISO 11898-2 EMC requirements without external filtering. |
| Smart Home HMI Panel | Medical Patient Monitor Interface |
Use Scenario: Wall-mounted thermostat with capacitive touch keys, ambient temperature sensing, and LCD display. IC Role / Device Role / Timing Role: SAR ADC reads thermistor; CSD detects button press; LCD driver powers segmented display in Deep Sleep with 4-bit memory retention. Use Value: Enables battery-powered operation for >5 years; eliminates external LCD controller and touch ASIC; supports IP65-rated front panel design. |
Use Scenario: Bedside vital signs monitor with ECG electrode interface, touch navigation, and low-noise analog front-end. IC Role / Device Role / Timing Role: Opamps condition ECG signals with programmable gain; SAR ADC digitizes at 1 Msps; Deep Sleep preserves configuration during idle periods. Use Value: Achieves <10 μV RMS input-referred noise; supports Class II medical safety isolation via GPIO-configurable signal paths; reduces certification effort with integrated analog validation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable mixed-signal MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C4247AZI-M485 | 128 kB flash, 16 kB SRAM, same core; adds USBFS block and increases GPIO count to 59. | Required for USB-connected HMI devices; not suitable when USB is unnecessary and cost sensitivity is high. | Select when host-side USB enumeration or DFU updates are needed; otherwise CY8C4245AXI-M445 offers lower unit cost and identical analog/digital capability. |
| STM32G474RET6 | Arm Cortex-M4F @ 170 MHz, 512 kB flash, 128 kB SRAM; includes FPU and advanced timers but lacks integrated CAPSENSE™ or LCD drive. | Suitable for math-intensive control algorithms; requires external components for robust capacitive touch or segment LCD. | Choose for high-performance motor control with vector math; avoid if CAPSENSE™ integration, ultra-low Deep Sleep current, or LCD direct drive are mandatory. |
Compared with CY8C4245AXI-M445, CY8C4247AZI-M485 adds USB connectivity at marginally higher cost and power, while STM32G474RET6 trades integrated analog peripherals for raw computational throughput-making CY8C4245AXI-M445 optimal for cost-constrained, sensor-rich embedded HMI with minimal external components.
Availability
CY8C4245AXI-M445 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body electronics, smart home HMI panels, and medical patient monitor interfaces requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for CY8C4245AXI-M445 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive MCUs, and secure connectivity solutions, with global R&D and manufacturing infrastructure.
CY8C4245AXI-M445 belongs to the PSoC™ 4200M family-designed specifically for highly integrated, low-power embedded systems requiring field-programmable analog and digital logic alongside Arm-based processing in a single chip.
FAQ
What development tools are required to program CY8C4245AXI-M445?
PSoC™ Creator IDE is the official development environment, providing schematic-based design entry, automatic analog/digital routing, and API libraries for all peripherals. After initial configuration, projects can be built and debugged using standard Arm GCC toolchains and OpenOCD-compatible debuggers via SWD interface.
Does CY8C4245AXI-M445 support hardware-based capacitive sensing tuning?
Yes-it integrates Infineon's SmartSense™ engine, which automatically adjusts sensor parameters (IDAC, scan resolution, averaging) in real time based on environmental changes. This hardware-accelerated tuning runs independently of the CPU and maintains stable touch performance across temperature, humidity, and voltage drift without firmware intervention.
Can the on-chip opamps drive external loads directly?
Yes-each of the four opamps supports programmable output drive strength up to 25 mA and operates in Deep Sleep mode. They can directly drive resistive touch overlays, LED bias circuits, or low-impedance sensors without external buffers, provided load conditions remain within specified output voltage swing and thermal limits per the datasheet.
Is CAN FD supported on CY8C4245AXI-M445?
No-this device implements two CAN 2.0B controllers only, supporting up to 1 Mbps classical CAN frames. CAN FD functionality is not present in the PSoC™ 4200M series; it is available in later-generation PSoC™ 6 and AURIX™ families from Infineon.
CY8C4245AXI-M445 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 64-LQFP
- Series:
- PSOC™ 4 CY8C42xx - M
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0
- Core Size:
- 32-Bit Single-Core
- Speed:
- 48MHz
- Connectivity:
- I2C, IrDA, LINbus, Microwire, SmartCard, SPI, SSP, UART/USART
- Peripherals:
- Brown-out Detect/Reset, Cap Sense, LCD, LVD, POR, PWM, SmartSense, WDT
- Number of I/O:
- 51
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 4K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 5.5V
- Data Converters:
- A/D 16x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C4245AXI-M445 FAQ
1.How can I place an order for CY8C4245AXI-M445 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4245AXI-M445 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for CY8C4245AXI-M445 reliable?
The price and inventory of CY8C4245AXI-M445 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4245AXI-M445 is usually 5 days.
3.What payment methods are accepted for CY8C4245AXI-M445?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4245AXI-M445 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4245AXI-M445?
CY8C4245AXI-M445 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4245AXI-M445 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for CY8C4245AXI-M445?
For technical support, including CY8C4245AXI-M445 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4245AXI-M445 requirements.
6.How does Aetrix verify that CY8C4245AXI-M445 is sourced from the original manufacturer or authorized distributors?
All CY8C4245AXI-M445 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that CY8C4245AXI-M445 meets industry standards.
7.What is the process for return or replacement of CY8C4245AXI-M445?
All CY8C4245AXI-M445 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4245AXI-M445, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The CY8C4245AXI-M445 part is unused and in its original packaging.
Return procedure for CY8C4245AXI-M445:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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